Novel crawler crane inner folding type arm frame and crane
A crawler crane and foldable technology, applied in cranes and other directions, can solve the problems of large pulling force of pull plates and steel cables, large space occupation, troublesome auxiliary movement of trolleys, etc., so as to reduce installation space, improve work efficiency, reduce costs and The effect of shipping weight
Active Publication Date: 2014-04-09
ZHEJIANG SANY EQUIP
View PDF8 Cites 8 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0003] In view of this, the present invention proposes a new type of crawler crane internal folding jib and crane to solve the above-mentioned problems of large space occupation, troublesome trolley auxiliary movement, and greater pulling force to be borne by pull plates and steel cables
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment
[0028] Please combine Figure 1-4 As shown, a novel crawler crane inner folding boom of the present invention includes a crane, a main boom, a jib 11, a main luffing mechanism 2, an auxiliary luffing structure, a luffing pulley block 16, a jib mast 14 and a lock The tightening device 8 is characterized in that,
[0029] The main arm and the auxiliary arm 11 are raised in an inwardly folding manner, and the working angle of the main arm can reach 90°, which can improve the lifting capacity of the crane. The main arm includes the lower section arm 3 of the main arm, the middle arm of the main arm 6. The arm head 13 of the main arm and the lower arm 3 of the main arm are connected to the fuselage 15 of the crane to form a supporting point on the fuselage 15;
[0030] The auxiliary luffing structure is composed of auxiliary luffing hoist 1, auxiliary luffing wire rope 4, fixed pulley block 5, and movable pulley block 9;
[0031] The main luffing mechanism 2 is fixedly arranged o...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses a novel crawler crane inner folding type arm frame and a crane. The novel crawler crane inner folding type arm frame comprises the crane, a main arm, an auxiliary arm, a main amplitude changing mechanism, an auxiliary amplitude changing structure, an amplitude changing pulley block, an auxiliary arm mast and a locking device, wherein the main arm comprises a main arm lower arm, a main arm middle arm and a main arm head; the auxiliary amplitude changing structure comprises an auxiliary amplitude changing winch, an auxiliary amplitude changing steel wire rope, a fixed pulley block and a movable pulley block; the fixed pulley block is hinged to the bottom of the main arm middle arm; the movable pulley block is slidably connected with the fixed pulley block; the auxiliary arm mast is hinged with an upper hinging point of the main arm head; the auxiliary arm is hinged with a lower hinging point of the main arm head; an auxiliary arm upper arm is hinged with a front hinging point of the auxiliary arm mast and is of an open type structure; the locking device is arranged between the main arm and the auxiliary arm, and is fixed on the main arm middle arm. The novel crawler crane inner folding type arm frame is applied to construction in dense urban building groups, is high in hoisting capability, and is convenient to install and transport; during arm lifting, the auxiliary arm does not need to be drawn by a trolley, so that the cost and the transportation weight are reduced.
Description
technical field [0001] The invention relates to a crane jib structure, in particular to a novel crawler crane inner folding jib and the crane. Background technique [0002] At present, when the jib 101 of a crawler crane is raised, basically the jib 101 is connected to the main jib 100 (unfolded), the main jib 100 is lifted by the pull plate and the steel cable, and the jib 101 is pulled by the trolley 103 to follow the main jib 100. Move for a raised arm effect. Its structure is as figure 1 , figure 2 shown. However, this way of raising the arm has some defects. First, the space occupied by the auxiliary arm 101 after deployment is relatively large, which is not suitable for activities in dense areas; , the center of gravity of the jib in this type of boom is relatively forward, and the pull plate and steel cable need to bear greater tension. Contents of the invention [0003] In view of this, the present invention proposes a new type of crawler crane internal foldi...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More IPC IPC(8): B66C23/68B66C23/82
Inventor 廖虎灵何陆根程建棠
Owner ZHEJIANG SANY EQUIP